ESTIMATION OF MERCURY EMISSION FROM COAL-FIRED BOILERS IN TYPICAL POWER PLANTS OF CHINA

HU Chang-xing1; ZHOU Jin-song2; HE Sheng2; LUO Zhong-yang2; CEN Ke-fa21.Ningbo College of Science and Engineering

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ESTIMATION OF MERCURY EMISSION FROM COAL-FIRED BOILERS IN TYPICAL POWER PLANTS OF CHINA

更新时间：2025-09-28

- ESTIMATION OF MERCURY EMISSION FROM COAL-FIRED BOILERS IN TYPICAL POWER PLANTS OF CHINA
- Thermal Power Generation Vol. 39, Issue 3, Pages: 1-4(2010)
- 作者机构：
  
  1. 浙江大学宁波理工学院
  2. 浙江大学能源洁净利用国家重点实验室
  3. 浙江大学宁波理工学院
  4. 浙江大学能源洁净利用国家重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC： X701.3
- Published：2010
- 稿件说明：
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HU Chang-xing1, ZHOU Jin-song2, HE Sheng2, et al. ESTIMATION OF MERCURY EMISSION FROM COAL-FIRED BOILERS IN TYPICAL POWER PLANTS OF CHINA[J]. Thermal power generation, 2010, 39(3): 1-4.
DOI：

HU Chang-xing1, ZHOU Jin-song2, HE Sheng2, et al. ESTIMATION OF MERCURY EMISSION FROM COAL-FIRED BOILERS IN TYPICAL POWER PLANTS OF CHINA[J]. Thermal power generation, 2010, 39(3): 1-4. DOI：

摘要

围绕电站燃煤汞排放量估算

建立了典型燃煤锅炉汞排放量估算模型。在实测的典型电站燃煤锅炉汞排放数据基础上

确定了典型燃煤锅炉系统各部分的汞影响系数Fij。同时

估算了典型电站燃煤锅炉汞的年排放量。我国100 MW机组典型燃煤锅炉总汞排放量在40~50 kg/a左右。当尾部烟气部位仅布置静电除尘器时气态汞比例高达80%左右;当静电除尘和湿法脱硫同时布置时

气态汞排放比例降低至30%左右;当选择性催化还原脱硝、静电除尘及湿法脱硫等装置联合使用时

气态汞的排放降低至总汞量的15%以下。

Abstract

Centred on the estimation of mercury emission from coal-fired boilers in power plants

a model for estimating the mercury emission from typical coal-fired boilers has been established.Based on practically measured data of mercury emission from coal-fired boilers in typical power plants

the mecury emission affecting coefficient Fij in each part of typical coal-fired boiler system has been determined

at the same time

the annual mercury emission from coal-fired boilers in typical power plant being estimated.The total mercury emission from typical coal-fired boilers of of 100 MW unit is about 40~50 kg/year in China.In the event of only electrostatic precipitator(EP) being allocated in tail section of the boiler

the gaseous mercury emission ratio reaches up about 80%;in the case of EP and wet flue gas desulphurization(WFGD) system being simultaneously allocated

the gaseous mercury emission ratio decreased to 30% of the total mercury emission;if EP

WFGD

and selective catalytic reduction(SCR) being used together

the gaseous mercury emission may decrease below 15% of the total mercury emission.

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